A n sridhar book for sfm

can anyone suggest me, who studied from s. d bala book and from sridhar book, As i m reading from s d bala book, but as there is not sufficient practical que there so want to take sridhar sirs book for practice. Is there same answer pattern in both books? will it be more advtges to study from sridhar book. Are any other book can be taken alongwith sd bala. Thanks in advance